If one is the other, than what's on which side of the equation doesn't really matter. They're still the same thing.
So sure a calzone is also a burrito. No difference really.
It works. my grandpa’s quirky sandwich! Make a kosher hot dog, slice lengthwise, put on a slice of bread, pile high garlic salt and hot sauce, then the second slice. I do think it started off with him trying to make something no one would eat, but my brothers and I jumped on it, especially when it horrified the Moms. He always acted like a little kid with how happy it made him: us kids (even if he was 70+) vs the moms!
Look up Oki Dog. Definitely a burrito. Then ponder how badly you want one and how direly you'll regret it should you ever eat one.
The most famous Oki creation was--is--the eponymous Oki Dog, a couple of hot dogs wrapped in a tortilla with chili, pickles, mustard, a slice of fried pastrami and a torrent of goopy American cheese--a cross-cultural burrito that’s pretty hard to stomach unless you’ve got the tum of a 16-year-old, but strangely delicious nonetheless. - Jonathan Gold
I’ll try almost any thing once. (There are limits. Fried grubs were like spicy/savory gummy bears. Baby octopus in red curry was amazing. “Live” baby squid was… interesting. Aborted duck egg is a hard nope.)
I suspect it has a lot to do with what else goes in it.